Montgomery (groin) didn't practice Thursday.
Since being labeled week-to-week by head coach DeMeco Ryans on Monday, Montgomery has sat out the Texans' ensuing two practices. Unless he's able to take part in Friday's practice in some fashion, Montgomery will likely be officially ruled out for Sunday's game against the Jaguars in London. Woody Marks looks poised to handle a workhorse role out of the backfield Week 6 with Montgomery expected to be inactive for the first time this season.